scotoman.
英 skɒ'təʊmə; skə(ʊ)- | 美 skə'tomə
中文n. 盲点，[眼科] 暗点
词根词源
scotoma (n.)(plural scotomata), 1540s, from Late Latin scotoma, from Greek skotoma "dizziness," from skotoun "to darken," from skotos "darkness" (see shade).
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